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Main Title: Direct observations of CO2 emission reductions due to COVID-19 lockdown across European urban districts
Author(s): Nicolini, Giacomo
Antoniella, Gabriele
Carotenuto, Federico
Christen, Andreas
Ciais, Philippe
Feigenwinter, Christian
Gioli, Beniamino
Stagakis, Stavros
Velasco, Erik
Vogt, Roland
Ward, Helen C.
Barlow, Janet
Chrysoulakis, Nektarios
Duce, Pierpaolo
Graus, Martin
Helfter, Carole
Heusinkveld, Bert
Järvi, Leena
Karl, Thomas
Marras, Serena
Masson, Valéry
Matthews, Bradley
Meier, Fred
Nemitz, Eiko
Sabbatini, Simone
Scherer, Dieter
Schume, Helmut
Sirca, Costantino
Steeneveld, Gert-Jan
Vagnoli, Carolina
Wang, Yilong
Zaldei, Alessandro
Zheng, Bo
Papale, Dario
Type: Article
Abstract: The measures taken to contain the spread of COVID-19 in 2020 included restrictions of people's mobility and reductions in economic activities. These drastic changes in daily life, enforced through national lockdowns, led to abrupt reductions of anthropogenic CO2 emissions in urbanized areas all over the world. To examine the effect of social restrictions on local emissions of CO2, we analysed district level CO2 fluxes measured by the eddy-covariance technique from 13 stations in 11 European cities. The data span several years before the pandemic until October 2020 (six months after the pandemic began in Europe). All sites showed a reduction in CO2 emissions during the national lockdowns. The magnitude of these reductions varies in time and space, from city to city as well as between different areas of the same city. We found that, during the first lockdowns, urban CO2 emissions were cut with respect to the same period in previous years by 5% to 87% across the analysed districts, mainly as a result of limitations on mobility. However, as the restrictions were lifted in the following months, emissions quickly rebounded to their pre-COVID levels in the majority of sites.
Subject(s): eddy-covariance
urban fluxes
urban pollution
traffic emissions
Corona virus pandemic
social restrictions
Issue Date: 19-Mar-2022
Date Available: 20-Jun-2022
Language Code: en
DDC Class: 577 Ökologie
Sponsor/Funder: EC/H2020/776186/EU/CO2 Human Emissions/CHE
EC/H2020/958927/EU/Prototype system for a Copernicus CO2 service/CoCO2
BMBF, 01LP1602A, Verbundprojekt Stadtklima: Evaluierung von Stadtklimamodellen (Modul B), 3DO Teilprojekt 1: Dreidimensionales Monitoring atmosphärischer Prozesse in Berlin
EC/H2020/836443/EU/Urban carbon dioxide Flux Monitoring using Eddy Covariance and Earth Observation/diFUME
Journal Title: The science of the total environment
Publisher: Elsevier
Volume: 830
Article Number: 154662
Publisher DOI: 10.1016/j.scitotenv.2022.154662
EISSN: 1879-1026
ISSN: 0048-9697
TU Affiliation(s): Fak. 6 Planen Bauen Umwelt » Inst. Ökologie » FG Klimatologie
Appears in Collections:Technische Universität Berlin » Publications

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